shyishguy

When should I change the Oil Filter if I use 15k Mobile Ext Life?

Kinda silly question since u can't change the filter without emptying the oil tank.

iSuxeL

iTrader: (21)

Silly question indeed, dont matter what oil you use, you should always change your oil and filter. I dont even change mines at every 5000 anymore. Car feels horrible at 4000miles.

T4styPh0

iTrader: (2)

And I thought I was the only one experiencing that..

iSuxeL

iTrader: (21)

Nope I can really tell its sluggish at 4k, its actually pretty noticeable too.

T4styPh0

iTrader: (2)

Would synthetic oil help that?

iSuxeL

iTrader: (21)

Nope, IMO oil changes shouldnt last 5k. It should be the same 3k as most cars regardless of the oil, I use Royal Purple full synthetic 5w-30 and it costs me about $7 a quart so its not cheap. I just say change it at every 3-4k.

gsrthomas

iTrader: (1)

I change mine at 3k miles. I guess im still in the old school oil change method.

But it makes me happy and that what counts.

Kurtz

iTrader: (1)

There's simply no reason but wasting $ to change that often, especially using a good synthetic.

hell, Amsoil is -explictly- sold with a 25k mile oil change interval. You'd be literally pouring $ down the drain changing it every 3k.

The dealer is hoping to make $ on your oil changes, and even he doesn't say to change it that often.

4TehNguyen

iTrader: (1)

do an oil analysis and they can tell you how long your oil will truly last. I bet I can take that 3-4k royal purple oil you dipose of, put it in my car, and run it easily for another 8k miles

T-Rex06

iTrader: (12)

I'm using Mobil 1 Synthetic oil and I do an oil change every 10k. However, I change my filter at every 5k.

You will NOT empty the oil when you change your filter. Just make sure you check the dip stick after you replace the filter and fill up whatever amount you need to make sure you have sufficient oil.

Terrance

lobuxracer

iTrader: (2)

^^Exactly. I've changed my filter element three times without draining any more than the volume of the canister. It only takes about 600cc to top off. I change my filter every 5k per the Lexus recommendation because it provides cheap insurance against a clogged filter and running in bypass mode which really does accelerate wear. Also, if you like wasting money and improving the odds of foreign matter entering your engine, keep changing your oil at <5k intervals.

I'm also the guy who does not exceed 3k rpm for the first 5 minutes while the oil is warming up to also prevent the filter from being bypassed while the oil is cold and thick.

iSuxeL

iTrader: (21)

Thats fantastic But I will still be changing my oil every 3-4k.